hash_update_file

    (PHP 5 >= 5.1.2, PHP 7, PHP 8, PECL hash >= 1.1)

    hash_update_file — Pump data into an active hashing context from a file

    Description

    hash_update_file(HashContext $context, string $filename, ?resource $stream_context = null): bool

    Parameters

    context

    Hashing context returned by hash_init().

    filename

    URL describing location of file to be hashed; Supports fopen() wrappers.

    stream_context

    Stream context as returned by stream_context_create().

    Return Values

    Returns true on success or false on failure.

    Changelog

    Version Description
    8.0.0 stream_context is now nullable.
    7.2.0 Accept HashContext instead of resource.

    See Also

    • hash_init() - Initialize an incremental hashing context
    • hash_update() - Pump data into an active hashing context
    • hash_update_stream() - Pump data into an active hashing context from an open stream
    • hash_final() - Finalize an incremental hash and return resulting digest
    • hash_file() - Generate a hash value using the contents of a given file

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